: Becca injected herself with "Nightblood" (a radiation filter) and escaped to Earth with A.L.I.E. 2.0, becoming the first Commander.
: To prevent the AI from "infecting" the other 12 stations (which became the Ark), the Ark commanders ordered Polaris destroyed. [S3E7] Thirteen
" Thirteen " is a pivotal episode of The 100 that bridge's the series' Grounder mythology with its hard science-fiction origins. It is widely regarded as the most controversial hour in the show's history due to the death of a major character. Executive Summary : Becca injected herself with "Nightblood" (a radiation
: Explains the end of the world via Becca's rogue AI, A.L.I.E. 1.0, and the birth of the Commander's lineage through A.L.I.E. 2.0. " Thirteen " is a pivotal episode of
: Becca worked on a second, more "human" AI version on the station Polaris.